> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/de/web/sql-injection/sql-injection-in-where-clause.md).

# SQL-Injection in der WHERE-Klausel

Notizen zu SQL-Injection in der WHERE-Klausel für Labs der PortSwigger Web Security Academy, einschließlich Ausnutzungs-Workflow, Payload-Tests, Burp-Suite-Validierung und Behebungskontext.

### SQL-Injection-Schwachstelle in der WHERE-Klausel, die das Abrufen versteckter Daten ermöglicht

* **Hintergrund / Schwachstelle:** Der Kategorienfilter ist anfällig für SQL-Injection. Die typische auf dem Server ausgeführte Anfrage:/ `SELECT * FROM products WHERE category = 'Gifts' AND released = 1`
* \*\*Angriffsziel (Labor):\*\* die Anzeige eines oder mehrerer unveröffentlichter Produkte erzwingen (`released = 0`).
* **Verwundbarer Parameter:** `category` (Produktfilter).
* **Funktionsnachweis (bereitgestellter Payload):**

```sql
test' or category='Lifestyle' and released=0-- -
```

* Kurzinterpretation: Der Payload verändert die WHERE-Bedingung, um Einträge einzuschließen, bei denen `category='Lifestyle' AND released=0` und umgeht dabei die `released = 1` Einschränkung.
* **Erwartetes Ergebnis:** die Seite liefert und zeigt Produkte an, die `released = 0` (unveröffentlichte Produkte).
* **Auswirkung:** Offenlegung maskierter Elemente, potenzielle Exfiltration sensibler Daten, Umgehung der Geschäftslogik (nicht für die Öffentlichkeit vorgesehen).


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